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Commitments and Contingencies (Details 3) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Commitments and Contingencies Disclosure [Abstract]    
Estimated probable liability for a supplier quality issue, minimum $ 2.2us-gaap_ProductLiabilityContingencyLossExposureNotAccruedLowEstimate  
Estimated probable liability for a supplier quality issue, maximum 6us-gaap_ProductLiabilityContingencyLossExposureNotAccruedHighEstimate  
Accrued product liability 2.2us-gaap_LossContingencyAccrualProductLiabilityNet  
Reimbursement receivable from supplier 2.2lii_ProductLiabilityContingencyReimbursementReceivable  
Expense for asbestos-related litigation $ 0.1us-gaap_LiabilityForAsbestosAndEnvironmentalClaimsNetIncurredLoss $ 0.2us-gaap_LiabilityForAsbestosAndEnvironmentalClaimsNetIncurredLoss